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Entanglement Effect Doubles Laser Beam Data Capacity

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Beams from ordinary laser pointers can be made to mimic the phenomenon of quantum entanglement, potentially doubling the amount of data they can carry. Physicists from The City College of New York, Heriot-Watt University in Scotland and Corning Inc. demonstrated the effect by transforming an ordinary beam into a polarization-dependent vector beam using conventional wave plates. "At the heart of quantum entanglement is 'nonseparability' — two entangled things are described by an unfactorizable equation," said City College doctoral student Giovanni Milione. "Interestingly, a...Read full article

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